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Teensy 4.1 tiny power IC replacement, Tips needed (lemmy.ml)

submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/[email protected]

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I have a project that is using a Teensy 4.1, the cheep 5v regulator I was using in the project let the magic smoke out for no good reason. I replaced that but now the Teensy boots and runs for about a min then quits. There is a TLV75733P power IC that is supplying the 3v3 and it gets hot then quits supplying power. Since that IC is $0.46 vs a new Teensy 4.1 ~ $40 I want to try and replace it. I have done a bit of SMD work but not tried to remove a tiny chip with a GND pad before so I’m looking for any tips. The PCB of the Teensy has header pins so I can’t really get good contact to a hot plate to preheat the board.

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[–] [email protected] 3 points 5 months ago (1 children)

I have one, going to try and tape it off from the other components heat it up and see if that works.

[–] [email protected] 4 points 5 months ago

Hey, it actually worked and took less the a couple of min.